Skip to content
  • MySensors
  • OpenHardware.io
  • Categories
  • Recent
  • Tags
  • Popular
Skins
  • Light
  • Brite
  • Cerulean
  • Cosmo
  • Flatly
  • Journal
  • Litera
  • Lumen
  • Lux
  • Materia
  • Minty
  • Morph
  • Pulse
  • Sandstone
  • Simplex
  • Sketchy
  • Spacelab
  • United
  • Yeti
  • Zephyr
  • Dark
  • Cyborg
  • Darkly
  • Quartz
  • Slate
  • Solar
  • Superhero
  • Vapor

  • Default (No Skin)
  • No Skin
Collapse
Brand Logo
  1. Home
  2. Troubleshooting
  3. multiple DS18D20 does not report temperature

multiple DS18D20 does not report temperature

Scheduled Pinned Locked Moved Troubleshooting
27 Posts 4 Posters 11.3k Views 2 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • Tomasz PazioT Offline
    Tomasz PazioT Offline
    Tomasz Pazio
    wrote on last edited by
    #9

    no, only this one, and nothing else.

    1 Reply Last reply
    0
    • hekH Offline
      hekH Offline
      hek
      Admin
      wrote on last edited by
      #10

      That seems wrong.

      What if you update the libraries and sketch to latest on github. There was an update to the Onewire/Dallas library recently to make in none-blocking...

      1 Reply Last reply
      0
      • Tomasz PazioT Offline
        Tomasz PazioT Offline
        Tomasz Pazio
        wrote on last edited by
        #11

        log is now different
        send: 3-3-0-0 s=255,c=0,t=17,pt=0,l=3,sg=0,st=ok:1.5
        send: 3-3-0-0 s=255,c=3,t=6,pt=1,l=1,sg=0,st=ok:0
        read: 0-0-3 s=255,c=3,t=6,pt=0,l=1,sg=0:M
        sensor started, id=3, parent=0, distance=1
        send: 3-3-0-0 s=255,c=3,t=11,pt=0,l=18,sg=0,st=ok:Temperature Sensor
        send: 3-3-0-0 s=255,c=3,t=12,pt=0,l=3,sg=0,st=ok:1.1
        send: 3-3-0-0 s=0,c=0,t=6,pt=0,l=0,sg=0,st=ok:
        send: 3-3-0-0 s=1,c=0,t=6,pt=0,l=0,sg=0,st=ok:

        but still no readings on vera :(

        1 Reply Last reply
        0
        • hekH Offline
          hekH Offline
          hek
          Admin
          wrote on last edited by
          #12

          I cannot see any temp readings in the debug log...

          Are you powering your 9 Dallas sensors directly from the Arduino or separately? I'm not sure how much they draw but 9 is quite much...

          1 Reply Last reply
          0
          • Tomasz PazioT Offline
            Tomasz PazioT Offline
            Tomasz Pazio
            wrote on last edited by
            #13

            Now trying with one and two. No more.

            1 Reply Last reply
            0
            • Tomasz PazioT Offline
              Tomasz PazioT Offline
              Tomasz Pazio
              wrote on last edited by
              #14

              There are two parts of issue:
              problem with no data on vera was on this part:
              // Only send data if temperature has changed and no error
              #if COMPARE_TEMP == 1
              if (lastTemperature[i] != temperature && temperature != -127.00 && temperature != 85.00) {
              #else
              if (temperature != -127.00 && temperature != 85.00) {
              #endif

              my reading is now -127.00
              changed to -200 and now I can see the data on vera.
              however this is not correct data because should be something like 27 Celsius.
              so there is something with conversion as well :(

              1 Reply Last reply
              0
              • hekH Offline
                hekH Offline
                hek
                Admin
                wrote on last edited by
                #15

                -127 means something is wrong when reading your dallas sensors. It is a an error code. So you actually only have an issue with your temp sensors.

                1 Reply Last reply
                0
                • Tomasz PazioT Offline
                  Tomasz PazioT Offline
                  Tomasz Pazio
                  wrote on last edited by
                  #16

                  2015-08-01 15_47_46-Poczta.png
                  when I use Example for Dallas multiple sensors it works fine.
                  2015-08-01 15_49_37-Poczta.png
                  when I use example for one-wire temperature sensor ds18.... it works fine as well
                  so i can reed but can not use Mysensors sketch :(

                  1 Reply Last reply
                  0
                  • hekH Offline
                    hekH Offline
                    hek
                    Admin
                    wrote on last edited by
                    #17

                    Very strange. Are you using the same OneWire library in both cases?

                    1 Reply Last reply
                    0
                    • Tomasz PazioT Offline
                      Tomasz PazioT Offline
                      Tomasz Pazio
                      wrote on last edited by
                      #18

                      yes the same.

                      1 Reply Last reply
                      0
                      • Tomasz PazioT Offline
                        Tomasz PazioT Offline
                        Tomasz Pazio
                        wrote on last edited by
                        #19

                        any idea?

                        1 Reply Last reply
                        0
                        • hekH Offline
                          hekH Offline
                          hek
                          Admin
                          wrote on last edited by
                          #20

                          No, must be hundreds of users running Dallas sensors here. Trying to figure out if anything has changed in the library/dependencies but I don't see anything except the thing I mentioned earlier here.

                          And you can get the sensor running without MySensors library loaded...

                          Guess I have to hook up a Dallas sensor myself to check (tomorrow or so..)

                          1 Reply Last reply
                          0
                          • rvendrameR Offline
                            rvendrameR Offline
                            rvendrame
                            Hero Member
                            wrote on last edited by
                            #21

                            Are you powering your Dallas sensor using the 'one-wire' method? Is your arduino 5V or 3.3V?

                            Home Assistant / Vera Plus UI7
                            ESP8266 GW + mySensors 2.3.2
                            Alexa / Google Home

                            1 Reply Last reply
                            0
                            • Tomasz PazioT Offline
                              Tomasz PazioT Offline
                              Tomasz Pazio
                              wrote on last edited by Tomasz Pazio
                              #22

                              exactly like o the example so power from arduino 5V (not parasite)

                              1 Reply Last reply
                              0
                              • rvendrameR Offline
                                rvendrameR Offline
                                rvendrame
                                Hero Member
                                wrote on last edited by
                                #23

                                Can you post the serial monitor logs, from both gateway and node?

                                Home Assistant / Vera Plus UI7
                                ESP8266 GW + mySensors 2.3.2
                                Alexa / Google Home

                                1 Reply Last reply
                                0
                                • Tomasz PazioT Offline
                                  Tomasz PazioT Offline
                                  Tomasz Pazio
                                  wrote on last edited by
                                  #24

                                  @rvendrame, why You need log from gateway? When no values are sent from node than nothing on Vera. When use some dummy values which are visible in node log - than those values are in Vera.

                                  1 Reply Last reply
                                  0
                                  • hekH Offline
                                    hekH Offline
                                    hek
                                    Admin
                                    wrote on last edited by
                                    #25

                                    @hek said:

                                    Guess I have to hook up a Dallas sensor myself to check (tomorrow or so..)

                                    Ok, tried latest from 1.5 branch and it works fine here with 2 hooked up DS18D20.

                                    sensor started, id=200, parent=0, distance=1
                                    send: 200-200-0-0 s=255,c=3,t=11,pt=0,l=18,sg=0,st=ok:Temperature Sensor
                                    send: 200-200-0-0 s=255,c=3,t=12,pt=0,l=3,sg=0,st=ok:1.1
                                    send: 200-200-0-0 s=0,c=0,t=6,pt=0,l=0,sg=0,st=ok:
                                    send: 200-200-0-0 s=1,c=0,t=6,pt=0,l=0,sg=0,st=ok:
                                    send: 200-200-0-0 s=0,c=1,t=0,pt=7,l=5,sg=0,st=ok:27.9
                                    send: 200-200-0-0 s=1,c=1,t=0,pt=7,l=5,sg=0,st=ok:28.0
                                    send: 200-200-0-0 s=0,c=1,t=0,pt=7,l=5,sg=0,st=ok:31.5
                                    send: 200-200-0-0 s=1,c=1,t=0,pt=7,l=5,sg=0,st=ok:32.0
                                    
                                    1 Reply Last reply
                                    0
                                    • Tomasz PazioT Offline
                                      Tomasz PazioT Offline
                                      Tomasz Pazio
                                      wrote on last edited by
                                      #26

                                      removed all Arduino related stuff from PC
                                      Installed new IDE and libs from https://github.com/mysensors/Arduino/archive/master.zip
                                      now I have progress, there are no readings no mater on which sketch hahaha.

                                      1 Reply Last reply
                                      0
                                      • clio75C Offline
                                        clio75C Offline
                                        clio75
                                        wrote on last edited by
                                        #27

                                        Hi,

                                        I have the same problem. No temperature is transported to GW.
                                        This log is from Sensor:
                                        req id
                                        send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:
                                        sensor started, id=255, parent=0, distance=1
                                        req id
                                        send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:
                                        req id
                                        send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:
                                        req id
                                        send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:

                                        I have added some exstra lines in serial printout so I know that ds1820 is found and read.

                                        req id
                                        send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:
                                        sensor started, id=255, parent=0, distance=1
                                        req id
                                        send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:
                                        req id
                                        send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:
                                        **Sensors found
                                        1
                                        **req id
                                        send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:
                                        temp :
                                        23.80

                                        But This value is not transported to GW.
                                        Any idee ?

                                        Thanx

                                        1 Reply Last reply
                                        0
                                        Reply
                                        • Reply as topic
                                        Log in to reply
                                        • Oldest to Newest
                                        • Newest to Oldest
                                        • Most Votes


                                        9

                                        Online

                                        11.7k

                                        Users

                                        11.2k

                                        Topics

                                        113.0k

                                        Posts


                                        Copyright 2019 TBD   |   Forum Guidelines   |   Privacy Policy   |   Terms of Service
                                        • Login

                                        • Don't have an account? Register

                                        • Login or register to search.
                                        • First post
                                          Last post
                                        0
                                        • MySensors
                                        • OpenHardware.io
                                        • Categories
                                        • Recent
                                        • Tags
                                        • Popular